Shoveling machine



W. COLE ET AL. SI-IovELINc MACHINE. ORIGINAL FILED JUNE 28. |921.

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' W. COLE ET AL.

SHovEl. NG MAcHI NE ORIGINAL FILED JUNE 28, 1921,

Patented `lan., 2, 1923.

SHOVELING' MACHINE.

Application tiled. June 28, 1921, Serial No. 481,121.

To all whomy t may concern.' v

Be it known that we, WILLIAM Conn and JAMES Gonniii, citizens of theUnited States of America, residing at lronwood, in the county of Gogebicand State of lVilichigan, have invented certain new and useful1inprovements in Shoveling Machines, of which the following is aspecification. c

Our present invention relates generally toA improvements in shovelingmachines and more vparticularly to improvements in shovcling machines ofthe type described and claimed in the Patent No. 1,321,983 granted to1William Cole under date of November 18, 1919. y Among the variousobjects of our improvements we aim to provide an extremely compact,simple and effective arrangement capable of entire operation by airpressure although not necessarily limited to the use of such fluid, aswell as an arrangement` in which the relative location and particularconnection of the parts permits of quick effective operation inextremely limited spaces such as for instance the loading of mine carsunder ground.

Like in the patent above referred to our present improved appara-tusemploys two piston cylinders controlling and actuating a clipper arm,but unlike the arrangement of the above patent, the dipper arm is in thepresent instance rigid with the dipper bucket and pivotally engaged atspaced points by the piston rods of the two cylinders in such mannerthat in all normal opera-tions there is but slight variance in theposition of the upper cylinder and the head room necessary for properoperation of the machine is reduced to a minimum as hereinafterparticularly set forth.y

In our present apparatus we employ a rotating frame mounted andoperating much similar to the rotating frame of the above patent, 4butwe avoid certain disadvantages -of the above arrangement detracting fromspeedy effective operation by the employment of a. dipper including adipper arm and a bucket rigid with the clipper arm, apart from andconnected to the pistons of the two cylinders.

With this general outline our invention. willit is believed bethoroughly understood, and its advantages appreciated from a consideration of the following description re ferring to the accompanyingdrawings,-

Renewed December 1, 1922.

which latter form a and wherein,

Figure 1 is a side elevation of our iinproved machine, parts of thecylinders being broken away and in section,

Figure 2 is a front elevation,

F 1 0-ure 9 is a rear eleyation I)arts bein part of this specification Ubroken away and in section, and

Figure 4l is a horizontal section taken on line 4 4 of Figure 1.

Referring now to these figures, the rotating frame of our presentmachine, including stiffened parallelly spaced uprights 10, securelyfastened at their lower ends upon a downwardly opening base ring orplatform 11, is mounted as in the patent above referred to upon acircular supporting base 12, portions of the platform and supportingbase having anti-friction balls or other members 13 therebetween torelieve friction.y rlhe supporting hase 12 is fixed upon a truck 14having wheels 15 adapted 'to rolling movement on mine tracks and thelike 16, and has secured thereon a stationary ring gear 17 with which apinion 18 is in engagement at one side. Pinion 18 is mounted upon thelower end of a motor shaft 19, the latter depending from motor 2O which,in the present instance is a rotary fluid motor to which a fluid supplypipe 21 leads through al valve box 92. rllhe valves of this motor whichmay be of any suitable type are controlled through manually actuatedconnections 23 from one hand lever of a series of such levers located atthe right hand side of the frame looking forwardly and at the sideopposite to that upon which the Huid motor 20 is mounted. These levers24, one of which controls the supply of air to the opposite ends of theupper cylinder 25 through its ducts 26 and the other of which controlsits supply of air to the opposite ends of the lower cylinder 27 throughits ducts 28, are mounted above and forwardly of the drivers seat 29 soas tov be within his convenient reach for proper and effectivemanipulation at all times.

The two cylindersf and 27 are each provided with a transverse pivot pin30 whose opposite ends are iournaled through bearings in the side plates10, Both ofvthese pins are located intermediate the ends of thecylinders`r the pin of the lower cylinder being at a point but slightlyto the rear of the center ot the cylinder whereas the pin 30 of theLipper cylinder is located adjacent to the rear end of its respectivecylinder and its supporting bearings indicated at 32 are positioned inupper rearward extensions 33 of the side plates l() adapting the uppercylinder to a substantially horizontal position at all times in ordinaryuse and thus minimizing its swing so as to avoid projection thereof toany appreciable extent and at any time above the upper ends of the sideplates.

The cylinders 25 and 27 have pistons 3a and 35 and piston rods 36 and37. the forward ends of the latter of which project through the 'forwardends of the cylinders and between'the rigidly trussed parallel side bars38 of the clipper arm generally indicated at 39.

The forward end of rod 36 is connected to the clipper arm adjacent toits upper end by a. transverse pivot pin 40 while the forward end ofVpiston rod 37 is connected by a transverse pivot pin al to the dipperarm intermediate the ends of the latter and but slightly above thedipper bucket. 4t2 which is rigidly mounted at the lower end of theclipper arm between the lower flared portions 43 of the side bars 38.This clipper bucket is open at its forward side and has a rear hingedgate or door All whose trip release and control may be of the ordinarytype and is not here illustrated as it forms no part of our presentinvention.

The fluid supply pipe 2l leading to the motor 20 and which also hasbranches 45 and 46 leading to the cylinders 25 and 27 through valves if?and i8 cont-rolled by certain of the hand levers 24.-, is preferablysupplied from a pipe' 4:9 extending` upwardly through the supportingbase l2 and the lower platform ll, axially of and rotatable with thelatter, whose lower end may be conveniently attached by a flexible hoseand the like to a suitable source of pressure supply.

It is obvious from the above that by the manipulation of its respectivehand lever 24, the motor 2O will be supplied with pressure to effectrotation of the vertical shaft 19 in. a desired direction whereby theengagement of the pinion 1S with the ring gear 17 will. rotate thcrevolving frame between various positions indicated in dotted lines inFigure land in any such positions i it is obvious the operator seated onthe seat 29 retains full `control of the several levers fortheirmanipulation bot-l1 to effect movement of the revolving frame and thecylinder pistons 34E and 3,5.

. The action of the shovel in operation is somewhat similar to that of aman shoveling and the bucket i-2 may be lfirst dipped upon forwardmovement of the piston rod 36 during which movement the clipper arm 39pivots: on the forward end of the piston rod 37. Then by forwardmovement of the piston rod 37 the dipper bucket is carried for-- wardlyso as to scoop up its load and at the same time swing upwardly as itpivots on the foruf'ard end of the piston rod 36. These movements arerespectively illustrated by the dotted line positions 391 and 391 ofFig.

ure l and it is obvious that the loaded bucket may, when it has beenshifted upwardly to approximately the plane of the upper cylinder 25, beshifted forwardly over the point at which the material is to be dumped,for instance overa mine car, with but very slight pivotal :movement orinclination of the upper cylinder 25.

Inclination of both cylinders is indeed minimized so that they may bearranged close to one another and their operation in practice with butslight variation from the horizontal reduces to a minimum the head roomrequired for the proper operation of the machine so as to adapt itselffor use within tunnels, mine drifts4 and the like where those of theordina-ry'type could not be used.

The rigid connection of the flipper bucket with the dipper arm avoidsthe necessity of first grounding the bucket and thus does away withpractically all waste of time, the

. operation as the result being capable of being carried out speedilyand effectively for the purposes previously described.

We claim:

l. A shoveling machine including a .rotatable support having spaceduprights, upper and lower` cylinders between said upj rights andpivotally connected thereto intermediate the ends of the cylinders,pistons in said cylinders, rods extending from said pistons forwardlythrough `said cylinders, and a clipper arm having a rigid bucket at its:lower end and having pivotal connections at its opposite end and at apoint intermediate its ends, with the forward ends yof said piston rods.

2. A shoveling machine including a rotatable support having spaceduprights, upfper and lower cylinders between said uprights and pivotallyconnected thereto intermediate the ends of the cylinders, pistons insaid cylinders, rods extending from said pistons forwardly through saidcylinders, and a dipper arm having a rigid bucket at its lower end andhaving pivotal connections at its oppositeend and at a pointintermediate its ends, withl the forward `ends of said piston rods, theupper cylinder `having its supporting pivot adjacent to the rear endthereof and the lower cylinder having lts supporting pivot adjacent to`the center thereof.

. 3. A shoveling` machine includino- `spaced side pilates having upperrearward extensions, an upper cylinder pivotally supported between thesaid rearward extensions at a point adjacent to the rear end ofthecylinder, a lower cylinder pivoted to said uprights; at e pointintermediate its ends adconnected to the orward end of the rod of theupper cylinder and having a pivotal 1D connection intermediate its endsand adjacent to the bucket, with the forward end ofthe piston rod of thelower cylinder.

In testimony whereof we have aflixed our signatures.

VILLIAM COLE. JAMES GOUDIE.

